im a bbot noob please halp

[Zeikov]

I need the this script....
X:=Self.X()
Y:=Self.Y()
Z:=Self.Z
VarSub(Y, 1)
Map.UseOn(669, 7931, !X!, !Y!, !Z!, 0)
to be executed when i press the 8 key on the number pad

And also need a script that attacks the target but with a 1 ms delay like 'auto 1 attack target' in elfbot